Eyelet inserting machine



Jan. 15, 1924.

W. OCHS EYELET INSERTING MACHINE Filed Jan;

16 1923 2 Sheets-Sheet 1 W. OCHS EYELET INSERTING MACHINE Jan. 15

Filed Jan. 16 1923 2 sheets-Shoot 2 Patented Jan. 15, 1924.

UNITED ST NWDWWWN... -Me.

OCHiS, OLE Bill) LIEBENSTEIII, GEBTHANY.

EYELLlEKlFINSEETING' IlllIAGI-I'Ihl'fll.

Application filed Januar Toall whom may concern:

ting die. This invention has for its object to provide a simple,reliable automatic ma chine the main parts of which may he eitherpressed, stamped or drawn from sheet iron thereby permitting the machineto he inanu'lactured in large quantities at a minimum expense.

A form of construction out the improved machine is shown by way ofexample on the accompanying drawing, wherein:

F 1 shows the machine in side elevation, partly in section in theposition of rest.

Fig.2 shows in side elevation, partly in section, parts of the machine,the trout wall is shown as removed and the parts of the machine areshown in tl-e positions which they assume at the instant at which theeyelet is being taken by the catch pin.

Fig. 3 is a view similar to Fig. 2 in which the parts are shown in thepositions which they assume at the instant of the flanging of an eyelet.

Fig. l is a view similar to Fig. 2 in which the parts are shown in thepositions which the assume durin the return to the initial. b V

positions.

Fig. 5 is a frontelevation.

Fig. 6 is a plan view on line A P oi Fin. 4.

F 7 is a. cross section through the eye- .lct reservoir on line (-l) oi?Fig. 6.

The frame of the machine is composed. of the two side walls 1, .1connected by the bed plate 2 and the cross bar 3. Sit the center of theframe the pr ssure lever of the mm chine is arranged so that it canoscillate around the pivot pin 4. This pressure lever consists of theeyelet reservoir 5 and. the cheeks 6 rigidly connected with saidreservoir. In the eyelet reservoir, which serves at the same time ashandle and which is Serial .tTo. 613,057.

preferably of cylindrical shape, an eyeletchannel 8 with lateral obliqueinlet openings '7 is arranged, which is covered by a plate 82overlapping at both sides. The orifice of the eyelet channel 8 turnedtowards the fulcrum is connected with raceway 9 located at or in thepressure lever. The outer end of the eyelet reservoir is closed by a lid10. After the lid 10 has been novcd the eyelets are filled into thercsevoir and by the oscillating mov'on'ient ot' the lever the eyeletsare moved through lateral inlets oi the channel and are ted into theracewaji". The inner end of the eyelet reservoir is mounted in a sheetiron sleeve it upon which the two sheet iron checks (5 are lined whichare pivot ally fixed upon the pint. The eyelet rcser voir, sleeve andchecks form, as already mentioned above, a. 1' d whole which serves aspressure or open lug lever. the checks (3 a sheet iron plate 152 isfixed which serves as a. bottom-tor the raceway Upon each cheek 6 arefixed bars 18 which serve as guides for the eyelets. The end of theraceway which is situated under the pivot pin is closed by elastictongues 14. The checks 6 have each adownwardly directed extension 15. lnthese extensions 15 a bolt 16 is fixed which serves as pivot tor the setpiston 17 which is pulled to the right by the action of a spring 18. Theset piston 17 has a lateral extension 19 with laterally projecting studs20 hearing against the extensions 15 of checks 6 and limiting thus theoscillation of the set piston in the right hand side direction. of restof the set piston which standseriactly under the front eyelet in"theraceway 9, which eyelet is retainer! by the elastic tongues 'll. The/setpiston 17 is perforated and the pivot bolt 16 has a cross boring. A.catch pin ill is ii'iserted into these two horinn's so that itenp'ageswith the set piston. ihe catch pin 2i. is secured in its position hylriction so that it can he easily displaced. The watch pin projects d";-.'ii\vards "from the set piston so that at the depression ol handle 5it comes in contact with an inclined. surface 252 and is pushed. inwarduntil it engages with the eyelet situated over it. It the depressingot'. the hand lever coutinues the laterally projecting studs 26 movingalong the curved edges 225, 2 upon the inner side of each. frame 1communicate to the set piston 17 an oscillating movement in left handside direction until. the tuds 2(1 Between This the position" 2 inane-eahave reached the concentric part 24 of the curves 23.

During this movement the catch pin 21 which is pushed upward removes thefront eyelet from the raceway 9 by pushing it past the elastic tongues14. The eyelet sits now loosely upon the catch pin of the set pistonand, moving along thepath indicated in dotted lines in Fig. 2 andremaining below the mouth of the machine, it gets below the upper die25. If the depression of the hand lever 5 is now completed, the setpiston remains at rest with regard to the hand lever and it is movedtowards the upper die 25 along an arc-shaped path as if the eyeletwasmounted upon the left end of a rigid twoarmed lever so that the eyeletis engaged by the die 25, pressed into the material and flanged. Thecentering pin 26 of the die 25 presses back the catch pin 21 into itsinitial position until the downward movement is completed (Fig. At thesucceeding upward movement caused by the pull spring 30 the catch pincomes in contact with the inclined surface 22 from the left hand side(Fig. 4c) and makes the same oscillate towards the right around pivotpin 27 until the catch pin is released whereupon the inclined surface isreturned into the initial position by the action of spring 28, theposition being oetermined by the nose 2%) coming in contact with thecross bar 3. The

pressure lever, set piston, catch pin and other parts have also adoptedtheir initial positions and the next operation can begin, a fresh eyelethaving been fed to the front end of the raceway.

In order to prevent the eyelets in the raceway from sliding back intothe channel when the eyelet reservoir is being pressed downward, thetransition from the channel to the'raceway is stepped. The step 31 actslike a check valve, so that the eyes are generally prevented fromsliding back into the channel.

What I claim is:

1. An eyelet inserting machine comprising a frame, a pressure levermounted therein, an eyelet reservoir forming an extension of saidpressure lever and serving as an operating handle therefor, an eyeletset oscillably mounted on said pressure lever, a catch pin mounted insaid eyelet set, an eyelet raceway on said pressure lever, a cooperatingset mounted on said frame and stationary cam means for causing theeyelet set on the pressure lever to more fromv a position under the endof the raceway into a position where it is adapted to cooperate with theset on the frame.

2. An eyelet insertingmachine comprising a frame, a pressure levermounted thorein, a rod-shaped eyelet reservoir forming an extension ofsaid pressure lever and serving as an operating handle therefor, aneyelet channel in said eyelet reservoir having oblique inlets at thesides displaced the one with regard to the other, a catch plate closingsaid eyelet channel at the top and overlapping at both sides, an eyeletset oscillably mounted on said pressure lever, a catch pin mounted in.said eyelet set, an eyelet raceway on said pressure lever, a cooperatingset mounted on said frame and stationary' cam means for causing theeyelet set on the pressure lever to move from a position under the endif the raceway into a position where it is aoapted to cooperate with theset on the frame.

3. An eyelet inserting machine compris ing a frame, a pressure levermounted therein, an eyelet reservoir forming an extension of saidpressure lever and serving as an operating handle therefor, an eyeletset oscillably mounted on said pressure lover, a catch pin mounted insaid eyelet set, an eyelet raceway on said pressure lever, a cooperatingset mounted on said frame and stationary cam means for causing theeyelet set on the pressure lever to move from a position under the endof the raceway into a position where it is adapted to cooperate with theset on the frame, and an oscillable inclined guiding surface for guidingsaid catch pin into the raceway for the eyelets before said raceway hasadopted a position below the horizontal, for holding said catch pin inthis advanced position until it is depressed again at the Hanging of theeyelet by the riveting die, said catch pin causing, when returned to theinitial position, said inclined surface -to oscillate around its pivot.

In testimony whereof I aifix my signature in presence of two witnesses.

WERNER OCHS. lVitnesses Rneonrii FRIOKJE, G. A. HorKrNs.

